SilentKagemusha Posted February 21 Share Posted February 21 Is anyone familiar with using a Shelly with a contactor? I have the Shelly pro em50 and an electrodepot HC1-63. I've wired it up as shown in the Shelly schematic, but the Shelly won't activate the contactor. When I hook the AC directly to the contactor via a standard toggle light switch it works just fine though. I suspect that the current the coil needs is more than the Shelly can provide, but I cannot find this supported in any of the documentation. Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted February 21 Members Share Posted February 21 Unfortunately, the diagram doesn’t show how you did connect the relay coil! Suppose you wired the coil directly to pin I and O of Shelly pro EM-50?! Cause pins I and O are representing a dry contact, nothing will happen. You’ll have to connect a live wire to pin I, a wire fron pin O to one leg of the coil and the second leg of the coil to neutral… 1 Quote Link to comment Share on other sites More sharing options...
SilentKagemusha Posted February 27 Author Share Posted February 27 On 2/21/2024 at 11:38 AM, thgoebel said: Unfortunately, the diagram doesn’t show how you did connect the relay coil! Suppose you wired the coil directly to pin I and O of Shelly pro EM-50?! Cause pins I and O are representing a dry contact, nothing will happen. You’ll have to connect a live wire to pin I, a wire fron pin O to one leg of the coil and the second leg of the coil to neutral… I tried connecting the relay on the hot/live side and on the neutral side of the contactor. Only the neutral side worked. An electrician I know warned me off switching neutral, so that wouldn't work. I also couldn't find a UL listed contactor for what I needed, switching 2x 20A circuits with a coil that requires less than 2A at 110-120VAC. I have since returned everything as I couldn't take the risk with my parent's home insurance. After all, I'm already taking a big enough risk with the other Shelly products I've installed since almost none of their products are UL listed, and certainly none of mine are. Quote Link to comment Share on other sites More sharing options...
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